Financial communication and investor relations are strategic corporate functions, tasked with fostering relationships with financial audiences. These financial audiences are of critical importance to the establishment, growth and sustainable success of corporations and ultimately determine corporate access to financial capital. This book draws on insights from finance and accounting research, economics, and psychology as well as media and communication studies to explain the role of corporate disclosure, storytelling, and relationship-management on capital market participants. It explores both theories of and empirical evidence for effects of corporate communications on financial audiences and derives principles for effective financial communication and investor relations. It not only provides such an introduction, but also develops a distinct perspective, guiding readers through the state of research by focusing on the effects and effectiveness of financial communication. In doing so, it will derive evidence-based implications for the role and management of financial communications and investor relations functions for both practice and academia. This book makes a valuable resource for scholars and graduate students studying or researching investor relations and financial communication across schools of communication, finance and accounting, business and management. Offering practical implications, it will also serve as a much-needed guide for practitioners.